Is glass jars with lids profitable to sell on Amazon United Kingdom?

The niche generates £1.3M/yr across 32 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is -15.8%. Flapen's verdict: Worth a look (55/100).

How competitive is the glass jars with lids niche?

18 brands and 67 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 73% of demand.

What do buyers complain about in glass jars with lids?

Top complaints mined from reviews: Size-Overall, Quality-Overall, Durability. The return rate is 0.8%.

When does demand for glass jars with lids peak?

Demand is steady year-round — the busiest month runs 1.5× the quietest.

What does it cost to enter the glass jars with lids niche?

Listings span £2.27–£24.75; the average listing price is £9.88 (sweet spot $15–$100). The average incumbent carries 1,322 reviews — the moat a new listing must climb.

glass jars with lids

Worth a look

Shows low returns (0.8%), but soft demand (-15.8% this quarter) keeps it on the watch list.

Returns

Incredible0.8%

return rate — above 5% kills the launch gate

Market size

Great£1.3M

£1.3M/yr · 2.5M searches

Conversion

Good5.4%

search→purchase rate — share of searches ending in a sale

Competition

Good50%

top-5 click share — leaders hold, buyers still browse

Review moat

Good1,321.84

avg incumbent reviews — the moat a new listing must climb

Brand share

Good73%

top-5 brand share — brands hold most of the demand

Price range

Okay£2.27–£24.75

cheapest to priciest tracked listing — scored on the share inside $15–$100

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Avg price

Okay£9.88

avg listing price — sweet spot $15–$100

Growth

Bad-15.8%

90-day search growth — must beat 0% to launch

According to Flapen's Amazon United Kingdom niche tracking, glass jars with lids is a £1.3M/yr Amazon United Kingdom market (2.5M searches/yr). The top 5 brands hold 73% of demand. Verdict: Worth a look — 55/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

glass jars with lids market data

Units sold / yr: 125K–150K; avg 2,500–3,000/product
Revenue / yr: £1.2M–£1.5M; units × avg price
Conversion rate: 5.4%
Avg BSR: #554
Page quality: 0%
Prime: 88%
Sponsored: 72%
Out of stock: 0.8%
Avg brand age: 35 months
Avg seller age: 174 days

Competition & brand share

The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.

Brands

18 falling

Sellers

Top-5 brand share

73%

Top 20: 100%

Top-5 click share

50%

Top 20: 88%

Open market

23%

Kilner47%
Hniuyun10%
Showvigor6%
Eidoct6%
ComSaf5%
MHDCLY4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -15.8% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top glass jars with lids search terms

glass jars with lids340K/yr -27.8%2.7% conv.
jars222K/yr +1.0%2.6% conv.
jar201K/yr -29.6%2.9% conv.
glass jar176K/yr -17.1%3.6% conv.
mason jar155K/yr -11.4%5.4% conv.
glass jars149K/yr -15.2%2.2% conv.
mason jars with lids139K/yr -14.2%3.9% conv.
storage jars129K/yr -29.3%0.9% conv.
jam jars188K/yr +29.3%5.6% conv.
jam jars with lids149K/yr +66.3%7.0% conv.

All search terms

Top glass jars with lids products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Kilner Preserve Jar 0.5L (500ml) Round Glass Screw Top Lid Preservation Storage Jar for Jams Chutneys Small Pickled Fruits

Kilner£2.274.6★3,565 rev

Kilner Clip Top Jar 1 Litre (1000ml) Airtight Glass Storage Jar for Preserving Fruits Vegetables Coffee Tea Rice Flour Nuts Pasta

Kilner£3.454.7★5,001 rev

Hniuyun 4 pack Glass Regular Mouth Mason Jars Clear Glass Jars with Silver Metal Lids for Sealing Food Storage Overnight Oats Dry Food Snacks Candies DIY Projects (16 oz

Hniuyun£7.364.4★644 rev

Kilner Preserve Jar 1L (1000ml) Round Glass Screw Top Lid Preservation Storage Jar for Pickling Vegetables Whole Fruits Chunky Chutneys

Kilner£2.884.6★2,474 rev

Kilner Clip Top Jar 2 Litre (2000ml) Airtight Glass Storage Jar for Preserving Fruits Vegetables Coffee Tea Rice Flour Nuts Pasta

Kilner£5.004.7★5,686 rev

Newest

by launch date

ComSaf Jam Jars with Lids 240ml 12 Pack Round Glass Jars with Red Gingham Lids Airtight Preserving Jars for Homemade Jam Chutney and Pickles Mason Jars with Labels for Gifting or Daily Storage

ComSaf£11.4945 rev

4mo ago

ComSaf Mason Jars with Lids 480ml/16oz 6 Pack Airtight Glass Jars with Lids Canning Jars for Pickling Jam Chutney Overnight Oats Jar for Breakfast & Salad Glass Container for Dry Food Storage

ComSaf£10.4637 rev

5mo ago

Showvigor 4 Pack Regular Mouth Mason Jars 16oz Glass Canning Jars with Airtight Lids for Preserving Jam Honey Jelly Wedding Favors Sauces Meal Prep Overnight Oats Salad

Showvigor£7.4310 rev

6mo ago

Overnight Oats Jar Glass Containers With Lids Mason jars with lids 500ml Glass Jars With Lids-Set Of 4 Overnight Oats Containers For Yogurt Pot Cereals Milk Fruit Condiment Dressing Sauce Snacks Juice

MHDCLY£9.14168 rev

1y ago

Showvigor 6pack Glass Jam Jars with Red Gingham Lid - 280ml/9oz - Hexagonal Storage Glass Jars Clear Airtight Jar for Pickling Chutney Jam Coffee

Showvigor£6.741,238 rev

1y ago

What buyers say about glass jars with lids

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall28%

“Very nice build quality”

Size-Overall16%

“nice fitting lids”

Value For Money13%

“Good for the money”

Storage Capacity8%

“Excellent storage”

Advertised Vs Actual Product7%

“As advertised”

Ease Of Use4%

“Ease of use”

Strength4%

“Practical sturdy containers”

Leak-Proof3%

“so far no leaks”

Durability3%

“Durable”

Ease Of Cleaning3%

“which is great for cleaning”

What buyers complain about

Size-Overall20%

“Smaller than they look”

Quality-Overall15%

“Poor quality”

Durability12%

“Breaks Easily”

Rusts/Corrodes6%

“it started rusting”

Advertised Vs Actual Product6%

“The dimensions provided don't give enough information and are misleading”

Strength4%

“Very flimsy 1 broke in transit the others chipped after slight use”

Ease Of Use3%

“very difficult to open when wet or moist”

Functionality-Overall3%

“they don't work / cannot keep food airtight”

Smell2%

“does not hold smells in the same way as plastic containers can”

Weight Heavy2%

“The original heavy”

Top return reasons

Size-Overall71%

Defective Material/Parts7%

Advertised Vs Actual Product5%

Quality-Overall2%

Functionality-Overall2%

Shape/Style2%

Compatibility-Overall1%

Ease Of Use1%

Value For Money1%

Thin1%

Common questions

Is glass jars with lids profitable to sell on Amazon United Kingdom?: The niche generates £1.3M/yr across 32 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is -15.8%. Flapen's verdict: Worth a look (55/100).
How competitive is the glass jars with lids niche?: 18 brands and 67 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 73% of demand.
What do buyers complain about in glass jars with lids?: Top complaints mined from reviews: Size-Overall, Quality-Overall, Durability. The return rate is 0.8%.
When does demand for glass jars with lids peak?: Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the glass jars with lids niche?: Listings span £2.27–£24.75; the average listing price is £9.88 (sweet spot $15–$100). The average incumbent carries 1,322 reviews — the moat a new listing must climb.